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Flashcards in ABG Deck (13)
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1
Q

PaO2

A

80-100

-hypoxic <60

2
Q

arterial O2 sat of hemoglobin- SaO2

A

92-99

3
Q

pH

A

7.35-7.45

4
Q

PaCO2

A

35-45

-respiratory

5
Q

HCO3

A

22-26

-metabolic

6
Q

base excess

A

-2-+2

7
Q

compensated

A
  • compensated if both PaCO2 and HCO3 in same direction
  • partial if both same but pH not normal
  • absent if 1 normal
  • complete if pH normal
8
Q

vent FiO2

A

0.21-1.00

9
Q

vent tidal vol

A

6-8

10
Q

vent I:E

A

1:2, 2:1 w ARDS

11
Q

PEEP

A

5-20

-physiologic 3-5

12
Q

vent problems-5

A
  1. tension pneumothorax
  2. oxygen toxicity- FiO2 100% for only 24 hrs
  3. respiratory acidosis/alkalosis
  4. infection
  5. dysphagia and aspiration
13
Q

5 mechanisms that lead to hypoxia

A
  1. hypoventilation
  2. intrapulmonary shunting
  3. ventilation-perfusion mismatch
  4. diffusion defects
  5. low cardiac output